Datasheet > ISL54228

ISL54228

更新时间： 2024-11-24 11:12:07

品牌	Logo	应用领域
英特矽尔 - INTERSIL		开关
页数	文件大小	规格书
17页	732K
描述
High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)

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ISL54228 数据手册

High-Speed USB 2.0 (480Mbps) DPST Switch with

Overvoltage Protection (OVP)

ISL54228

Features

• High-Speed (480Mbps) and Full-Speed (12Mbps)

Signaling Capability per USB 2.0

The Intersil ISL54228 is a single supply, dual SPST

(Single Pole/Single Throw) switch that is configured as a

DPST. It can operate from a single 2.7V to 5.25V supply.

The part was designed for switching or isolating a USB

high-speed source or a USB high-speed and full-speed

source in portable battery powered products.

• 1.8V Logic Compatible (2.7V to +3.6V Supply)

• Low Power State

• Power OFF Protection

• COM Pins Overvoltage Detection and Protection for

+5.25V and -5V Fault Voltages

The 3.5Ω SPST switches were specifically designed to

pass USB full speed and USB high speed data signals.

They have high bandwidth and low capacitance to pass

USB high speed data signals with minimal distortion.

The device has two logic control pins (OE and LP) to

control the SPST switches.

• -3dB Frequency . . . . . . . . . . . . . . . . . . 790MHz

• Low ON Capacitance @ 240MHz. . . . . . . . . . 2pF

• Low ON-Resistance. . . . . . . . . . . . . . . . . . 3.5Ω

• Single Supply Operation (V ) . . . . 2.7V to 5.25V

The ISL54228 has OVP detection circuitry on the COM

pins to open the SPST switches when the voltage at

these pins exceeds 3.8V or goes negative by -0.45V. It

isolates fault voltages up to +5.25V or down to -5V from

getting passed to the other-side of the switch, thereby

protecting the USB down-stream transceiver.

• Available in µTQFN and TDFN Packages

• Pb-Free (RoHS Compliant)

• Compliant with USB 2.0 Short Circuit and

Overvoltage Requirements Without Additional

External Components

The ISL54228 is available in 8 Ld 1.2mmx1.4mm

µTQFN and 8 Ld 2mmx2mm TDFN packages. It operates

over a temperature range of -40°C to +85°C.

Applications*(see page 15)

• MP3 and other Personal Media Players

• Cellular/Mobile Phones, PDA’s

• Digital Cameras and Camcorders

• USB Switching

Typical Application

USB 2.0 HS Eye Pattern with

Switches in the Signal Path

3.3V

500Ω

VDD

LOGIC

CONTROL

µP

VBUS

D-

COM -

OVP

USB

HIGH-SPEED

TRANSCEIVER

DET

D+

COM +

ISL54228

GND

TIME SCALE (0.2ns/DIV)

July 29, 2010

FN7628.0

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...17

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与ISL54228相关器件

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ISL54228IRTZ-T	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
ISL54228IRTZ-T7A	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
ISL54228IRUZEVAL1Z	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
ISL54228IRUZ-T	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
ISL54228IRUZ-T7A	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
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ISL54230_09	INTERSIL	获取价格	Octal Multiprotocol Switch
ISL54230IIZ-T	INTERSIL	获取价格	Octal Multiprotocol Switch
ISL54230IRTZ	INTERSIL	获取价格	Octal Multiprotocol Switch
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